Changeset 391 for python/trunk/Lib/idlelib/run.py

Timestamp:

Mar 19, 2014, 11:31:01 PM (11 years ago)

Author:

dmik

Message:

python: Merge vendor 2.7.6 to trunk.

Location:

python/trunk

Files:

• . (modified) (1 prop)
• Lib/idlelib/run.py (modified) (13 diffs)

python/trunk/Lib/idlelib/run.py

@@ -1 +1 @@
 import sys
+import io
 import linecache
 import time
@@ -8 +9 @@
 import Queue
 
-import CallTips
-import AutoComplete
-
-import RemoteDebugger
-import RemoteObjectBrowser
-import StackViewer
-import rpc
+from idlelib import CallTips
+from idlelib import AutoComplete
+
+from idlelib import RemoteDebugger
+from idlelib import RemoteObjectBrowser
+from idlelib import StackViewer
+from idlelib import rpc
+from idlelib import PyShell
+from idlelib import IOBinding
 
 import __main__
@@ -20 +23 @@
 LOCALHOST = '127.0.0.1'
 
-try:
-    import warnings
-except ImportError:
-    pass
-else:
-    def idle_formatwarning_subproc(message, category, filename, lineno,
-                                   file=None, line=None):
-        """Format warnings the IDLE way"""
-        s = "\nWarning (from warnings module):\n"
-        s += '  File \"%s\", line %s\n' % (filename, lineno)
-        line = linecache.getline(filename, lineno).strip() \
-            if line is None else line
-        if line:
-            s += "    %s\n" % line
-        s += "%s: %s\n" % (category.__name__, message)
-        return s
-    warnings.formatwarning = idle_formatwarning_subproc
+import warnings
+
+def idle_showwarning_subproc(
+        message, category, filename, lineno, file=None, line=None):
+    """Show Idle-format warning after replacing warnings.showwarning.
+
+    The only difference is the formatter called.
+    """
+    if file is None:
+        file = sys.stderr
+    try:
+        file.write(PyShell.idle_formatwarning(
+                message, category, filename, lineno, line))
+    except IOError:
+        pass # the file (probably stderr) is invalid - this warning gets lost.
+
+_warnings_showwarning = None
+
+def capture_warnings(capture):
+    "Replace warning.showwarning with idle_showwarning_subproc, or reverse."
+
+    global _warnings_showwarning
+    if capture:
+        if _warnings_showwarning is None:
+            _warnings_showwarning = warnings.showwarning
+            warnings.showwarning = idle_showwarning_subproc
+    else:
+        if _warnings_showwarning is not None:
+            warnings.showwarning = _warnings_showwarning
+            _warnings_showwarning = None
+
+capture_warnings(True)
 
 # Thread shared globals: Establish a queue between a subthread (which handles
@@ -68 +86 @@
     global no_exitfunc
     no_exitfunc = del_exitfunc
-    port = 8833
     #time.sleep(15) # test subprocess not responding
-    if sys.argv[1:]:
-        port = int(sys.argv[1])
+    try:
+        assert(len(sys.argv) > 1)
+        port = int(sys.argv[-1])
+    except:
+        print>>sys.stderr, "IDLE Subprocess: no IP port passed in sys.argv."
+        return
+
+    capture_warnings(True)
     sys.argv[:] = [""]
     sockthread = threading.Thread(target=manage_socket,
@@ -98 +121 @@
             continue
         except SystemExit:
+            capture_warnings(False)
             raise
         except:
@@ -117 +141 @@
             server = MyRPCServer(address, MyHandler)
             break
-        except socket.error, err:
+        except socket.error as err:
             print>>sys.__stderr__,"IDLE Subprocess: socket error: "\
-                                        + err[1] + ", retrying...."
+                                        + err.args[1] + ", retrying...."
     else:
         print>>sys.__stderr__, "IDLE Subprocess: Connection to "\
@@ -134 +158 @@
     root = Tkinter.Tk()
     root.withdraw()
-    if err[0] == 61: # connection refused
+    if err.args[0] == 61: # connection refused
         msg = "IDLE's subprocess can't connect to %s:%d.  This may be due "\
               "to your personal firewall configuration.  It is safe to "\
@@ -141 +165 @@
         tkMessageBox.showerror("IDLE Subprocess Error", msg, parent=root)
     else:
-        tkMessageBox.showerror("IDLE Subprocess Error", "Socket Error: %s" % err[1])
+        tkMessageBox.showerror("IDLE Subprocess Error",
+                               "Socket Error: %s" % err.args[1])
     root.destroy()
 
@@ -212 +237 @@
         except AttributeError:
             pass
+    capture_warnings(False)
     sys.exit(0)
 
@@ -244 +270 @@
             thread.interrupt_main()
 
-
 class MyHandler(rpc.RPCHandler):
 
@@ -251 +276 @@
         executive = Executive(self)
         self.register("exec", executive)
-        sys.stdin = self.console = self.get_remote_proxy("stdin")
-        sys.stdout = self.get_remote_proxy("stdout")
-        sys.stderr = self.get_remote_proxy("stderr")
-        import IOBinding
-        sys.stdin.encoding = sys.stdout.encoding = \
-                             sys.stderr.encoding = IOBinding.encoding
+        self.console = self.get_remote_proxy("console")
+        sys.stdin = PyShell.PseudoInputFile(self.console, "stdin",
+                IOBinding.encoding)
+        sys.stdout = PyShell.PseudoOutputFile(self.console, "stdout",
+                IOBinding.encoding)
+        sys.stderr = PyShell.PseudoOutputFile(self.console, "stderr",
+                IOBinding.encoding)
+
+        # Keep a reference to stdin so that it won't try to exit IDLE if
+        # sys.stdin gets changed from within IDLE's shell. See issue17838.
+        self._keep_stdin = sys.stdin
+
         self.interp = self.get_remote_proxy("interp")
         rpc.RPCHandler.getresponse(self, myseq=None, wait=0.05)
@@ -294 +325 @@
             finally:
                 interruptable = False
+        except SystemExit:
+            # Scripts that raise SystemExit should just
+            # return to the interactive prompt
+            pass
         except:
             self.usr_exc_info = sys.exc_info()
             if quitting:
                 exit()
-            # even print a user code SystemExit exception, continue
             print_exception()
             jit = self.rpchandler.console.getvar("<<toggle-jit-stack-viewer>>")
@@ -337 +371 @@
         item = StackViewer.StackTreeItem(flist, tb)
         return RemoteObjectBrowser.remote_object_tree_item(item)
+
+capture_warnings(False)  # Make sure turned off; see issue 18081